Christmas Day has a way of sneaking up fast, and if you realize too late that you’re missing a key ingredient, a last-minute bottle of wine or even batteries for a new gift, options may be limited. That’s because most grocery stores across the U.S. close on Christmas Day to allow employees time off with their loved ones.

When you want to buy headphones, a new dress, and your groceries all in one place, where should you go? Stores like Target and Walmart have you covered. Unfortunately, though, both of these chains are mired in conflict. Shoppers have been boycotting Target ...